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-rw-r--r--src/mame/video/megasys1.cpp5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/mame/video/megasys1.cpp b/src/mame/video/megasys1.cpp
index f140b29d717..6609f673920 100644
--- a/src/mame/video/megasys1.cpp
+++ b/src/mame/video/megasys1.cpp
@@ -447,7 +447,10 @@ WRITE16_MEMBER(megasys1_state::megasys1_vregs_A_w)
break;
case 0x308/2 : soundlatch_word_w(space,0,new_data,0xffff);
- m_audiocpu->set_input_line(4, HOLD_LINE);
+ if (!m_hardware_type_z)
+ m_audiocpu->set_input_line(4, HOLD_LINE);
+ else
+ m_audiocpu->set_input_line(5, HOLD_LINE);
break;
default : SHOW_WRITE_ERROR("vreg %04X <- %04X",offset*2,data);